multifunction temp sensor on 87.5 CGT

[Huw Powell]

> Just a point of reference, on the 87.5 coupe GT, the digital temp gauge is
> run by a single standard temp sensor located just above the #1 cylinder and
> NOT the multi function temp sensor.  I was all set to rip this piece of
> junk out over the weekend, and was checking the wiring when I noticed that
> the blue/brown wire which Audi uses to run the temp gauge went not to the
> MF sensor but to the single sensor underneath the PS pump bracket.  That
> means the MF sensor is just being used for the 120 deg. C overheat switch
> and also overheat for the A/C compressor controlled relay.  For now, I just
> unplugged the connector and left it until I can find a M14x1.5 bolt to
> thread into the bottom of coolant outlet.  Ideally, I like to drill this
> bolt and tap for M10x1K hole to run a 4kq style dual temp sensor/overheat
> switch.

I think it would be easier to get a new/used 2.2 coolant neck and use
that.  no tapping required.

--
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/